The Kapio Red S4 PAPR Helmet from Weltek is a premium powered-air welding helmet that combines high optical clarity, full-face protection, and a lightweight, ergonomic design. With its S4 auto-darkening filter, 4 arc sensors, and fast response time, this helmet is perfect for welders who prioritise both safety and comfort when using a PAPR / Airkos blower system.
Key Features
S4 Auto-Darkening Filter
DIN 9-13 welding shade and clear grinding shade (DIN 4) allow smooth transitions between welding and grinding.
Fast Switching Speed
Reacts in just 0.2 ms, ensuring your eyes are protected the instant an arc strikes.
Four Arc Sensors
Reliable arc detection across all welding processes, reducing the chances of mis-triggering.
Wide Side Vision
Features 160° side-vision panels in transparent DIN 5 polycarbonate for improved situational awareness.
Adjustable Shade & Sensitivity
Stepless knobs for shade, sensitivity, and delay settings let you fine-tune the filter for your welding conditions.
Grinding Mode
Disables the arc sensors and locks in a clear DIN 4 shade, letting you grind safely without switching helmets.
Ergonomic Headgear
Longitudinal adjustment headgear with four settings (height, width, angle, depth) — ideal for welders who wear glasses.
Certified Protection
- Helmet shell and polycarbonate lenses certified to EN 166 B and EN 175 B.
- Auto-darkening filter meets EN 379.
- When matched with an Airkos blower, the system meets EN 12941 for powered air protection.
Lightweight Build
Total helmet weight around 458 g, helping reduce fatigue during long wear.
Comfort & Safety
Designed to offer full protection of the forehead, ears, and neck while maintaining breathability when used with a PAPR system.
